Gray wolves, the largest wild dog species in the world, are carnivorous animals that hunt and live in packs. The packs hunt for large prey, such as reindeer, moose, bison and elk. They often steal prey from other animals and also scavenge carrion. In the early 20th century, gray wolf became critically endangered in the lower 48 states of the USA. As of 2014, gray wolves are listed as threatened by the state of Michigan, but because of a successful recovery program, they were removed from the endangered list.
